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Micro ATX motherboard dark PCB silver heatsinks AM5 socket four DDR5 slots

GIGABYTE

GIGABYTE B840M AORUS ELITE AMD motherboard WiFi6E

SKU CH-11N7-9WYCG

Micro-ATX AM5 board with DDR5 support up to 8200 MT/s, WiFi6E, and DisplayPort 1.4 for 3840x2160@144 Hz output

  • ProcessorRyzen 9000 Series
  • ChipsetAMD B550
  • Form factorATX
  • CPU socketAM4
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR4 5333
  • Supports Ryzen 9000, 8000 and 7000 series processors for broad AM5 compatibility
  • DDR5 memory up to 8200 MT/s overclocked with EXPO and XMP profiles
  • Four DIMM slots accept up to 256 GB total system memory
  • DisplayPort 1.4 output drives 3840x2160 at 144 Hz
  • AMD B840 chipset with integrated Radeon graphics for display without discrete GPU

AMD B840 Micro ATX Board

This GIGABYTE B840M AORUS ELITE motherboard targets builders who want a compact AM5 platform with WiFi6E and high-speed DDR5 support. It fits Micro ATX cases while still providing four DDR5 slots and modern connectivity.

Upgrade from B550 or older AM4

Moving from an AMD B550 or earlier AM4 board lets you run Ryzen 7000, 8000 and 9000 series processors with DDR5 memory up to 8200 MT/s overclocked. The jump is worth it when you need PCIe 5.0 graphics bandwidth and integrated Radeon graphics with DisplayPort 1.4 at 3840x2160 resolution.

Straightforward AM5 install

The AM5 socket uses a land-grid array so there are no fragile pins on the CPU; align the triangle markers and lower the retention lever. Common issues are forgetting the BIOS update for newer Ryzen 9000 chips and not seating DDR5 modules until the latches click on both ends.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $229.99
Typical for this category: the median of 1,906 items is $224.49.

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Specifications

Product
Brand nameASUS
Product linePrime
Model nameB850M A ELT WF6E ICE
Part numberB850M A ELT WF6E ICE
Processor
ProcessorRyzen 9000 Series
CPU socketAM4
ChipsetAMD B550
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR4 5333
Max supported RAM128 GB
Memory channels12-Channel
Storage
SATA ports14 x SATA 6Gb/s
Connectivity
Maximum network speed100 Mbit/s
Wi-Fi standardWi-Fi 802.11 be
Ports & slots
PCIe 5.0 x16 slots2 x PCI Express 5.0 x16
PCIe 4.0 x16 slots1 x PCI Express 4.0 x16
PCIe 3.0 x16 slots1 x PCI Express 3.0 x16
PCIe x16 slots1 x PCI Express x16
PCIe x4 slots3 x PCI Express x4
PCIe x1 slots2 x PCI Express x1
PCI slots1 x PCI Slot
Additional slots2 x Mini PCIe
Rear panel ports1 × 6.3 mm Headphone
PS/2 ports1
Serial ports3
Video connectors1
HDMI ports1 x HDMI
Ethernet port1 x RJ45
USB 3.1 ports2 x USB 3.1
USB 3.0 ports10 x USB 3.0
USB 2.0 ports9 x USB 2.0
Audio jacks6 Ports
Onboard USB headers1 x USB 3.1 + 2 x USB 3.0 + 2 x USB 2.0
Power
Power connectors24 Pin
Size & build
Form factorATX
Width and length20'
In the box
In the box1 unit
More details
PCI express 2.0 x161 x PCI Express 2.0 x16

Questions about this item

What size case and mounting holes does the Micro ATX board need?

The board uses the Micro ATX form factor, so it fits any case with Micro ATX or larger motherboard trays and standard ATX mounting holes.

How do I install the DDR5 memory and which slot order avoids the common mistake?

Install modules in the two grey slots first for dual-channel operation; the board has four 288-pin DDR5 slots supporting up to 256 GB total.

When will the WiFi 6E module need attention or replacement?

The onboard WiFi 6E is soldered to the board and has no user-serviceable parts; if it fails the motherboard would require professional repair.

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